HINGE SYSTEM FOR ROTARY FASTENING OF DOORS OR WINDOWS AND METHOD OF HINGE SYSTEM ADJUSTMENT Russian patent published in 2025 - IPC E05D7/04 

FIELD: hinges or suspension devices for doors, windows or wings.

SUBSTANCE: invention relates to a concealed hinge system for pivoting around a hinge pin of a door or a window on a door or window frame, as well as to a method of adjusting the hinge system. Concealed hinge system for pivoting around the hinged axis of the door or window flaps on the door or window frame includes a housing, as well as a cassette partially located inside the housing, wherein the hinged clevis is inserted into the receiving area of the cassette along a horizontal direction perpendicular to the hinged axis, wherein the concealed hinge system for adjusting the hinged clevis in the direction of the sealing clamp, which is located perpendicular to the hinge axis and perpendicular to the horizontal direction, has a screw and a threaded pin, wherein the screw is located in the first through hole of the fastening region of the cartridge and in the first threaded hole of the hinged clevis, wherein the screw head is located so that it is adjacent to the fastening area contact surface facing away from the hinged clevis, wherein the threaded pin is located in the second through threaded hole of the fastening area and abutting on the hinged clevis, as well as the technical result is achieved by the method of adjusting such a hinge system.

EFFECT: convenience and simplicity of adjustment along the direction of the sealing clamp.

12 cl, 6 dwg